Improvement in rotary pumps



'fr-Ares lUNiifED HENRY MAAS, OF HOMESTEAD, IOWA.v

IMPROVEMENT IN ROTARY PUMPS.

Specification forming part of Letters Patent No. 55,318, dated June 5,1866.

To all whom it may concern Beit known that I, HENRY MAAS, of Homestead,Iowa county, State of Iowa, have in` vented new and useful Improvementsin Rotary Pumps 5 and I do hereby declare that the followingis a full,clear, and exact description thereof', which will enable others skilledin the art to make and use the same, reference being had to theaccompanyillg drawings, forming part of this specication, in which-Figure lis aside elevation of the pumpeasing; Fig. 2, a plan or top viewof the lower section ot' the pump-casing, witl1 the upper section andrevolving disk or plate-ring ot' the same removed; Fig. 3, a centralvertical section taken in the plane of the line c x, Fig. 2, with allthe working parts of the pump and the two sections of its casing placedproperly together and fastened; Fig. et, a view of the under side of therevolving disk or plate-ring, and Fig. 5 a plan view of the interior ofthe upper casing with all the operating parts removed. f

Similar letters of reference indicate like parts.

Ain the drawings represents a hollow round casing divided into two equalparts or sections,

. B B, secured together by screws or in any other ner, and are at equaldistances apart, with an opening, I, between every t\voot` them, whichopenings are all similar in shape and each bounded by that portion ofthe inner side of the ring Gand the periphery of hub H included betweenthe edges ot' every two of the arms F. Each of the arms F, both upontheir upper and lower sides, have a shoulder, J, extending in thedirection of their length, and in a radial line with the center of thering (J. The hub H projects above the upper edge of the rin g G. but isin the same line with its lower edge, Each of the openings I of the ringG, formed as above explained, is closed by a plate, J, corresponding inshape thereto, resting upon the shoulder portion ot' the upper sideot'one of the arlns F and tting the shoulder of the' under side of thenext arm thereto, either toward the right or left, as the case may be,which plates are ot the same thickness as the arms, and are each hung soas to balance, by trunnion-pins, a, one upon their outer circularshapededge, fitting the inner side ot' the ring G, and the other upon theiredge fitting the periphery ot' the hub, but in aradial line with eachother from the common center of the hub and ring, turning respectivelyinsuitable bearings of the ring and its hub at the proper points therefor.The inner trunnion-'pin of each plate, J, has a similar quadrant-shapedarm, K, which arms, when the plates are horizontal or resting upon theshoulder portions of .the upper side of the ring-arms F, project down,-ward in a plane at right angles thereto, their curved edgescorresponding in shape to the stationary annular cup-shaped cavity L ofthe central portion of the lower casing-section.

M is a vertical shaft passing loosely through the upper section of thecasing A and the center of the ring-hub H, with diametrical notches c ofwhich it isinterlooked by its diametrical pins d, turning at its lowerend in a suitableshaped socket or bearing, N, in the lower section ofthe casing A. By turning this shaft either to the right or left itnecessarily turns with it the ring and hub, with the series of platesbalanced between them, as explained, each ot' which, as thequadrant-shaped arms -of their inner trunnion-pins, upon which they arehung, abuts in turn against the stop O,formed in the annular cup-shapedcavity K of the lower casing-section, are swung upwardV from their seatupon the ring and hub arms and brought-into a vertical position, oraplane at right, angles thereto, the quadrant trunnionarms of such platesthen lying in the annularshaped recess I?, surrounding the shaft M, inthe under side of the hub, from which position, by continuing therotation of said shaft, they (the -said plates) are swung down againinto a horizontal position upon or in the same line with theirring-arms, from which they were raised or swung up, as explained, bytheir abutment, in turn, against the corner Q and inclined edge R of theblock or stop S at one portion of the annular-shaped channel or way T ofthe upper j casingsection; the transverse section of which,

in connection with the annular channel or way U of the lower section,corresponds exactly to the periphery or edge of the rin g-plates or wings as they move around in the same. In this horilhui'g, as described,theiifaterpthus admitted will be carried around with the plates and by ly th ein discharged from the pulnpcasin g through suitableontletorescape therefor leading zontal or flat positionl they renraiii aslthteyin; turn pass between the lower face of the said block ofthe uppercasing-section and ablock, T, in a position and of a lengthcorresponding thereto, or nearly so, of the lowersection, the

space between these two blocks beingequal to' the entire thickness oftheplates when the quadrant-arms of the plate trunnion-pins in turn againAabutting against the stop'of the cup- Shaped cavity of the lowersection, the plates ar'e again' in turn swungupintoa vertical poi-1sition, and again movedbackinto a horizontal position as they strike'the'corner Q and-inclined edge R ofl the upper section" of thecasing=block S; when; as each, in turn, passingy between vsuch blocks-SV and the block 'correr spending! thereto in" the lower section,- it isagain swung' in avertical or right-angula-r.por`

' j hung in andto the saine, when aralfged within al casing having anoutlet and: inlet opening thereto in such amfanne'r thatitcan'berotated, 'and' thesaid casing is so'c'nstructed as to operatev thesaidring-plat'esd substantially in l the manner and to" accoril'plishlthe purpose i described.

sitioiivs'itlrrfegardto therot'ating ring,` as before explainelyand soonas long as the shaft is turned:`

From the' above-F description of the manner in which the several plates:hung to therevolvigring or disk C et thepumpcas'ing are operated ilrconnection with the internal con#4 struction of the latter and thegeneral arrangef ment of the whole together,` it ijs plain to bel s'centhat if the pump heplaced in the bottom j of the well, for' instance;with a suitable opening incide in itsic'asin'gtoallow`l water to enterit at such part or portion of the same as the plates are swung into avertical position, or, in

other words, at right angles to the plane of u rotation of the commonring in which they are up through the well, arranged at such point of ithe pump-casing as the plates are swung back into line, or so as tocoincide with the plane of rotation of their common rin g, therebycausing the water to be forced up from and out of the well,` as isobviouswi-thout'ainy further explanation it bein g hereadvisablefhowever, to state, inl c onclu'sion,` thatit' is necessarythat all the working and-slidifgparts of the pump 'should be watertightso far as possible and practicable;

I claim as new and desire to secure by Let g terslPatent-l y yWitnesses: y

W. lVIonRsHE-L, GUSTAN MILLERl

